(True or False?) The genes in the heterochromatin are mostly inactive.

(True or False?) During the period between divisions (interphase) the majority is in the form of heterochromatin.

The combination of DNA and proteins is called .................

What does ‘chromo’ of chromosomes mean?

The ................... is cylindrical in shape and is made up of eight histone molecules.

How many chromosomes are there in the sperm cells?

What does ‘somes’ of chromosomes mean?

Before cell division, the chromosome is a double structure; made of two identical structures called ........................., joined together.

How many chromosomes are there in human somatic (body) cells?

Two identical chromatids make one............

Each chromatid contains one .............. molecule.

.................. is a type of chromatin which is tightly coiled, as in the chromosomes seen at nuclear division.